World Bank. Transportation, Water and Telecommunications Department, & Feachem, R. G. (1981). Health aspects of excreta and sullage management: A state-of-the-art review. Transportation, Water and Telecommunications Dept., World Bank.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিWorld Bank. Transportation, Water and Telecommunications Department, এবং Richard G. Feachem. Health Aspects of Excreta and Sullage Management: A State-of-the-art Review. Washington, D.C: Transportation, Water and Telecommunications Dept., World Bank, 1981.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিWorld Bank. Transportation, Water and Telecommunications Department, এবং Richard G. Feachem. Health Aspects of Excreta and Sullage Management: A State-of-the-art Review. Transportation, Water and Telecommunications Dept., World Bank, 1981.